Title
Absence of Gelation and Self-Similar Behavior for a Coagulation-Fragmentation Equation.
Abstract
The dynamics of a coagulation-fragmentation equation with multiplicative coagulation kernel and critical singular fragmentation is studied. In contrast to the coagulation equation, it is proved that fragmentation prevents the occurrence of the gelation phenomenon and a mass-conserving solution is constructed. The large time behavior of this solution is shown to be described by a self-similar solution. In addition, the second moment is finite for positive times whatever its initial value. The proof relies on the Laplace transform which maps the original equation to a first-order nonlinear hyperbolic equation with a singular source term. A precise study of this equation is then performed with the method of characteristics.
Year
DOI
Venue
2015
10.1137/140976236
SIAM JOURNAL ON MATHEMATICAL ANALYSIS
Keywords
Field
DocType
coagulation,singular fragmentation,mass conservation,self-similarity,Laplace transform,characteristics
Regular singular point,Mathematical optimization,Green's function for the three-variable Laplace equation,Mathematical analysis,Singular solution,Method of characteristics,Laplace's equation,Initial value problem,Partial differential equation,Mathematics,Hyperbolic partial differential equation
Journal
Volume
Issue
ISSN
47
3
0036-1410
Citations 
PageRank 
References 
1
0.97
1
Authors
2
Name
Order
Citations
PageRank
Philippe Laurençot13010.30
Henry van Roessel210.97